Meiosis

Question 1

Synapsis

Answer 1

the pairing of two homologous chromosomes that occur during cell division

Question 2

Chiasmata

Answer 2

the PLACE or PART where the 2 of the 4 chromatids (1 from each homologue) OVERLAP to form an X-shaped
pattern.

for example if I am a chromosome or bivalent and haliyat is a another chromosome or bivalent and we put our pinkys together to cross-over genetic material out CHiASMATA would be our pinkys becase thats were we touch.

Question 3

crossing-over

Answer 3

the exchange of material between non-sister chromatids
resulting in the rearrangement of genetic material in homologous
chromosomes
can result in changes in specific traits

( exchange of genetic material occur between the strands.)

Question 4

homologouse chromosomes

Answer 4

a pair of chromosomes
which are similar but not identical (different sizes)

Question 5

centromere

Answer 5

connects sister chromatids at the center during prophase.

Question 6

chromatid

Answer 6

one of the two identical halves of a chromosome that has been replicated in preparation for cell division (S phase in interphase after G1)

Question 7

Meiosis ends with how many cells

Answer 7

4 cells

Question 8

Meiosis is the process of what

Answer 8

producing gametes, or sex cells

Question 9

somatic cell

Answer 9

regular cell (any cell that isn’t reproductive cells- eggs and sperm and sex cells-Y&X)

Question 10

bivalents

Answer 10

two sister chromatids paird together

Question 11

tetrad

Answer 11

two bivalents together (during crossing over)

Question 12

What is a gamete

Answer 12

Gametes are unfertilized reproductive cells. (eggs for females and sperm for males)

Question 13

Zygote is..

Answer 13

fertillized cell (first cell of a human)

Question 14

allels

Answer 14

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome.

same gene, different form-example: gene for blue eyes is an allele of the gene for brown eyes
(both genes for eye colour but for different colours making them alleles)

Question 15

phases of Meiosis

Answer 15

interphase, prophase1, metaphase1, anaphase1, telophase1,
(same here as it is for mitosis except for in prophase1 where crossing over occurs)

prophase2, metaphase2, anaphase2, telophase2

(prophase 2 nothing rlly occurs-says msr Johnson)